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What does STR stand for? For a given STR, what is the same about it for...

What does STR stand for? For a given STR, what is the same about it for all individuals within a population? How can it vary between individuals?

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Answer #1

STR stands for short tandem repeats. It is a short tandem repeat that is a Microsatellite consisting of two to thirteen nucleotide repeates hundred of times on dna strand.

For a given STR it is not the same for all the individuals in a population. The variation occurs between the number of repeats of the nucleotide stretch on DNA. STR analysis reveals the exact number of repeats in an individual and two persons can be distinguished based on a number of repeats.

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